WO2026052416 - METHOD FOR QUANTIFYING MICROPLASTICS PRESENT IN AN UNCONSOLIDATED SOLID MATRIX FURTHER COMPRISING FRESH ORGANIC MATTER
National phase entry is expected:
Publication Number
WO/2026/052416
Publication Date
12.03.2026
International Application No.
PCT/EP2025/074023
International Filing Date
22.08.2025
Title **
[English]
METHOD FOR QUANTIFYING MICROPLASTICS PRESENT IN AN UNCONSOLIDATED SOLID MATRIX FURTHER COMPRISING FRESH ORGANIC MATTER
[French]
PROCEDE POUR QUANTIFIER DES MICROPLASTIQUES PRESENTS DANS UNE MATRICE SOLIDE NON CONSOLIDEE COMPORTANT EN OUTRE DE LA MATIERE ORGANIQUE FRAICHE
Applicants **
IFP ENERGIES NOUVELLES
Inventors
ROMERO-SARMIENTO, Maria-Fernanda
ROHAIS, Sebastien
RAVELOJAONA, Herman
Priority Data
FR2409433
05.09.2024
FR
Application details
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1880 | |
| EPO | Filing, Examination, Granting | 8126 | |
| Japan | Filing, Examination, Granting | 2001 | |
| South Korea | Filing, Examination, Granting | 1757 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
18,504
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Abstract[English]
The present invention relates to a method for quantifying microplastics in a sample comprising an unconsolidated solid matrix and fresh organic matter. The sample is heated in an inert atmosphere between an initial temperature (T0) ranging from 340°C to 360°C and a final temperature (TF) of at least 550°C, the temperature sequence comprising first and second isothermal stages (P1, P2) at the initial temperature (T0) and at an intermediate temperature (TI) ranging from 380°C to 400°C, respectively, and a curve of the amount of hydrocarbon compounds released by the sample as a function of temperature is measured. An amount of hydrocarbon compounds released by the microplastics in the sample is determined by integrating the curve measured from the intermediate temperature (TI) up to a final integration temperature ranging from the intermediate temperature (TI) to the final temperature (TF), and a quantification of the microplastics in the sample is deduced therefrom.[French]
La présente invention concerne un procédé pour quantifier des microplastiques d'un échantillon comprenant une matrice solide non consolidée et de la matière organique fraiche. On chauffe ledit échantillon en atmosphère inerte entre une température initiale (T0) comprise entre 340°C et 360°C et une température finale (TF) valant au moins 550°C, la séquence de températures comprenant un premier et un deuxième paliers isothermes (P1, P2) respectivement à ladite température initiale (T0) et à une température intermédiaire (TI) comprise entre 380°C et 400°C, et on mesure une courbe de la quantité de composés hydrocarbonés libérés par l'échantillon en fonction de la température. On détermine une quantité de composés hydrocarbonés libérés par les microplastiques de l'échantillon en intégrant la courbe mesurée entre ladite température intermédiaire (TI) et une température finale d'intégration comprise entre ladite température intermédiaire (TI) et ladite température finale (TF), et on en déduit une quantification des microplastiques de l'échantillon.